One kilogram of R-134a fills a 0.090-m³ rigid container at an initial temperature of -32°C. The container is then heated until the pressure is 280 kPa. Determine the initial pressure and final temperature. Use data from the steam tables. The initial pressure is kPa. The final temperature is °C.

A gas occupies a volume of 240 ml at 65°C and 297 kPa. What is the volume of the gas at STP? Show your work. Include units on your answer. (STP is standard temperature and pressure. Standard temperature is 273 K and 101.3 kPa.)

A group of scientists developed a 100.0mL stainless steel cylinder that has an optimum pressurecapacity of 5.00 atm. A sample of carbon dioxide at 30°C and 2.56 atm, will be placed in a heatingchamber to reach a temperature of 250°C. Will the pressure inside exceed the optimum capacity of thestainless steel cylinder? Yes or No. And find the value of pressure.

Hot gaes Expanding A mixture hot gases expands, changing volume from 2.45 L to 6.82 L, against a constant pressure of 3.22 atm. The P-Vwork involved is Latm .

A compressed gas cylinder at 13,700 kPa and 23°C, is in a room where a fire raises the temperature to 450.°C. What is the new pressure of the cylinder, in atm? The volume of the cylinder does not change.

A 6.3 X 10-3 m3 sample of helium gas stored at 298 K (25 °C) and 1.0 X 105 Pa pressure is transferred to a 2.0 X 10-3 m3 tank and maintained at a pressure of 2.8 X 105 Pa. What temperature is needed to maintain this pressure?

A particular football has an internal volume of 2.25 L at an outdoor temperature of 35°C. When the football is brought indoors, the temperature in the football drops to 20°C. What is the new volume of the football? Show the formula and the calculations.

A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. The cylinder is also submerged in a large insulated water bath. (See sketch at right.) From previous experiments, this chemical reaction is known to release 293. kl of energy. The position of the piston is monitored, and it is determined from this data that the system does 274, kJ of work on the piston during the reaction. Is the reaction exothermic ar endothermic? exothermic endothermic up Does the temperature of the water bath go up or down? down Does the piston move in or out? Does heat flow into or out of the gas mixture? lala heither neither neither Tam prese gases pon rylinde bath Som Au ement.

3 please

Draw a structural formula for the major product of the reaction shown. CH₂CH₂CH=CHCH₂CH3Cl₂ H₂O Show product stereochemistry IF the reactant alkene has both carbons of the double bond within a ring. • Do not show stereochemistry in other cases. • If the reaction produces a racemic mixture, just draw one stereoisomer. √ [F* ChemDoodle Next